/ now checks database before returning 200

src/main.py

@@ -528,6 +528,21 @@ async def get_server_info():
         """
                 Return the server name and version
         """
+        def _check_database():
+                with psycopg.connect(connect_statement) as conn:
+                        with conn.cursor() as cur:
+                                cur.execute("SELECT 1")
+                                cur.fetchone()
+
+        try:
+                await asyncio.to_thread(_check_database)
+        except Exception as exc:
+                logger.exception("Database health check failed.")
+                raise HTTPException(
+                        status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
+                        detail="Database unavailable.",
+                ) from exc
+
         info = {
                 "version":"Micro License Server {version}".format(version=VERSION)
         }